Voters in Louisiana head to the polls on Saturday for their Republican Senate primary, where incumbent Senator Bill Cassidy is facing his most serious challenge since voting to convict former President Donald Trump during his 2021 impeachment trial. The race pits Cassidy against Rep. Julia Letlow, who has received Trump’s backing and runs as the candidate most aligned with his agenda.
Cassidy, a Republican senator from Louisiana, argued that he can work with Trump's administration while still defending his conviction vote, a stance that asks much of primary voters where Trump remains popular in the state. In a recent development, President Donald Trump urged Louisiana Republicans to vote Cassidy out on Saturday morning via Truth Social, calling him "a sleazebag" and "a terrible guy." He also endorsed Letlow, further urging Lousiana voters to back her.
The race has become particularly contentious as Cassidy seeks his third term. The primary is taking place under a new voting system where eligible voters are funneled into party-specific ballots for certain offices, including the U.S. Senate. This change means that no-party voters who choose a ballot at the polls will be locked into it through any subsequent runoff.
In the closing stretch of the campaign, Cassidy has emphasized his ability to work with Trump’s administration while still defending his impeachment vote as a matter of principle. However, this argument faces significant challenges in an electorate where Trump remains popular and influential.
The primary is expected to have national implications, given that it could set up a showdown between Cassidy and Letlow for the Republican nomination. The outcome will likely hinge on how well Cassidy can navigate the ongoing political divide within his party over allegiance to former President Donald Trump.
This article was produced by AVALW News on Saturday, May 16, 2026 based on reporting from 5 verified news sources. Our editorial process cross-references facts from multiple independent outlets to deliver accurate, comprehensive coverage. All original sources are linked below.